Gas-generator.



No. 726,949. PATENTED MAY 5, 1903.

A. LANGEN.

GAS GENERATOR.

APPLIUATION FILED PEB. 1e, 190s.

N MODEL.

WITN 55555! AUNITED' STATES Patented May 5, 1903.

PATENT Finca.

A DOLE LANGEN, OF COLOGNE, GERMANY.

GAS-GEN ERATO R.

SPECIFICATION forming part of Letters Patent No. 726,949, dated May 5, 1903.

Application iiled February 16, 1903. Serial No. 143,705. (No model.)

To aldil/71,01% it may concern/.-

Be it known that I, ADOLF LANGEN, manager, a subjectvof the German Emperor, re

' tion, such as will Yenable others skilled in thev art to which it appertains to make and use the same.

My invention relates to an improvement in gas-generators in which the air required for combustion is sucked into the generator 'by the aspirating action ofthe gas-engine. As the ash-box must be `open to the air in this form of generator and gas continues to be developed for a short time after the stopping of the engine, it escapes through the grate and forms an explosive mixture with the air, which coming into contact with the red-hot coals by diffusion or by being sucked into the generator when the engine is again. started takes fire and explodes with a loud detonation.

The present improvement is intended to avoid this inconvenience and danger by placing a sucking-valve in the air-conduit anda Y two different embodiments of myvimproved generator. Y Y v Referring to Fig. 1, A is the generator. b is the air-conduit, with thessucking-valve c, and CZ the gas-conduit, with the back valve e. Both valves remain closed as long as the pressure is equal on both sides. When, however, the engine aspirates, the valve e is kept shut by the pressure of the atmosphere and the valve c opens automatically and admits air into the generator, where it is converted into gas. c closes immediately and valve c opens to the pressure producedby the continued development of gas and allows the surplus to escape into the air. Thus no combustible gas can issue from the generator into the ash-box, and the explosions caused thereby are avoided.

Fig. 2 shows a preferable form of the sucking-valve adapted for generators in which the ilrawingsflghavel shown by way of example in Figures 1 and 2- Nhen the engine is stopped, valve' current of the air for combustion is conducted over heated water before entering the fur-v an evaporating-tank arranged above the generator Aand warmed by the hot gases.

The air-conduit b is fixed in the tankla and reaches -down below the. surface ofthe water, which -is kept at aconstant level by means of a sup- Aply-.pipe andan overflow. (Not represented in the drawings.) In the gas-conduit a back valve e is provided in the same manner as in Fig. 1, which opens to the Vpressure of the gas from withinY and may of course be also replaced by a water trap.

`When the engine is started and a partial vacuum is produced by its aspirating action, air will enter through the conduit b and through the wateriuto pipe c. The air, which has already taken up moisture from the water, is saturated with vapor on its way through the evaporator a and is then sucked into the furnace ofV the generator.

I of course do not limit myself to the details of this generator as described. A boiler Amayalsobe `arranged independently of the generator as an evaporating-tank and heated '-by the hot vapors.' VThe described water trap has the advantage that it does not require 'any special parts, but can be formed by means of the necessary parts of the generator.

' Having now particularly described and ascertained the nature of my said invention and the manner in which the same is to be performed, I declare that what I claim is- 1. In a generator from which the gas produced is aspirated by a gas-engine the combination of au ash-box, ofan air-,conduit leading into the ash-box, of-.a suction-valvein the air-conduit, of a gas-condnit'andfof aback valve in the gas-conduitsubstantially as described and for the purpose 'set f orth;

2. In a generator from which the gas produced is aspirated by a gas-engine the combination of an ash-box, of an air-conduit lead- A IOC valve in the gas-conduit, substantially asdescribed and for the purpose set forth.

3. In a generator from which the gas produced is aspirated by a gas-engine the combinatiou of an ash-box, of an air-conduit leading into the ash-box, of a, Water trap in the l(tir-conduit and formed by a. tank surround' ing the generator, of a gas-conduit and of a back valve in the gas-conduit, substantially as described and for the purpose set forth. Io

In testimony whereof I have affixed my signature in presence of two Witnesses.

ADOLF LANGEN.

Witnesses:

.FRHR. VON LYNEKER,

CARL SCHMITT. 

